Multiple bubble blower



Sept. 3, 1940. H. c. GAMBLE MULTIPLE BUBBLE BLOWER Filed May 31,- 1938;

INVENTOR Helen C. Gamble- Y HER TORNEY Patented Sept. 3, 1940 UNITED STATES PATENT OFFICE 1 Claim.

My present invention relates to bubble-blowers comprising multiple bubble forming openings.

More particularly, my invention is directed to a blower capable of low cost manufacture and em- 5 bodying an arrangement of multiple discharge openings insuring great success of substantially simultaneous multiple bubble formation and bubbles of maximum respective sizes and lengths of life.

Specifically, the blower body is preferably of circular contour, the discharge openings having preferably uniform diameters of opening, arranged in radial alignment, the paths of flow of the air being substantially equal, and the 15 facial areas about the respective discharge openings being dished, with or without peripheral bead formation. Thereby a product of low cost and certainty of operation is had.

Further features and objects of the invention will be more fully understood from the following detail description and the accompanying drawing, in which Fig. l is a side elevation of one preferred embodiment of the invention, illustrating also a View of multiple soap bubbles generated respectively one within another in the use of the shown embodiment.

Fig. 2 is a bottom plan View of the embodiment shown in Fig. 1, the pipe stem being broken 30 away.

Fig. 3 is a central sectional view of a simplified form of construction illustrated in Figs. 1 and 2.

Fig. 4 is a central sectional view of another em- 35 bodiment of the invention.

Referring to Figs. 1, 2 and 3, the bubble blower comprises a pipe stem l which has a bore lllb. One end llla of the pipe stem is adapted, as by the provision of a bead, to facilitate support in the mouth of the operator, the other end of the pipe stem being arranged to be securely inserted, as by the indicated mating threading, in the entry opening I la of the blower per se ll.

45 The blower per se is conveniently of wood and preferably constructed by simple woodturning and boring operations. As shown in Figs. 1, 2 and 3, three discharge openings llb, H0 and lld are formed in the effective, i. e. lower 50 face of the wooden body ll, which preferably has a circular contour.

Such discharge openings l lb, I la and l lcZ may, as shown, be arranged in radial alignment, the opening llb being disposed at the center, the

55 next opening llc approximately mid-radially and the radially outermost opening lld closely adjacent but spaced from the circular periphery l2, such openings communicating with the common bore IS. The common bore l3, as is illustrated, advantageously has a greater diameter 5 than the diameter of the discharge openings.-

Preferably, as shown a bead, see I4, is formed at the circular periphery l2 on the effective, 1. e., lower, face of the blower body, which serves to effectively increase the capacity of the face to receive soap-containing water or like bubbleproducing fluid when immersed in a body of such fluid and to retain the same when Withdrawn therefrom in inverted, i. e., downwardly facing position.

Such bead l4 serves also as an effective anchorage for the outer margin of the bubble or bubbles during and after the air blowing operation.

Further, in the employment of radially spaced discharge openings, such as the radially aligned openings llb, He and lld, of substantially equal diameter of opening, as shown in Figs. 1, 2 and 3, it is preferable for attaining a high. average of success of simultaneous bubbles at all three openings, to provide substantially equal lengths of paths of air flow for each opening, the lengths of such paths being measured from inlet opening lla through the common bore l3 to the termini of the respective discharge openings llb, I lo, I Id. Accordingly the central opening III) is provided with the longest bore, the intermediate Opening No with a bore of relatively lesser length, and the most remote opening lid with a bore of relatively least length. 5

Such structure is also coordinated in the stated relationship by providing the circular enlargement l lb of maximum length for the walls of the central opening llb, the circular enlargement No of lesser lengthand also greater di- 40 ameterfor the intermediate opening He, the terminus of the radially outermost opening lld being substantially coincident with the effective face of the body I l.

Preferably, also, the annular face portion of the body ll coincident with the terminus of the discharge opening I ld, and also the annular face of the enlargement llc' are dished, to there'- by increase their respective facial areas, and to give rise to a bead formation.

The embodiment shown in Fig. 4 possesses structure and functional characteristics similar to those of the embodiment shown in Figs. 1, 2 and 3, and like parts are designated by llike reference characters. The embodiment shown in Fig. 4 particularizes the employment of a second intermediate discharge opening designated He, and a corresponding enlargement He on the effective face of the bubble-blower body II, and correspondingly dished at its annular face.

The multiple bubbles illustrated in Fig. 1, one bubble within the other, indicate success in bubble blowing readily attained by even the uninitiated.

Whereas I have described my invention by reference to specific forms thereof, it will be understood that many changes and modifications may be made without departing from the spirit of the invention.

I claim:

In a bubble blower, a solid substantially circular body having one surface forming a series of substantially concentric steps which lead successively upwardly toward the center of said body; a substantially rectilinear air flow passage formed through said body, said rectilinear air flow passage being open at one end, closed at the opposite end, and traversing almost the entire diametrical width of said body below the said series of steps; and a series of air flow passages formed through said body substantially perpendicular to said rectilinear air flow passage, said series of air flow passages comprising individual air flow passages which each open intermediate a respective one of the said steps, the shortest of said individual air flow passages being disposed farthest from the opening of said rectilinear air flow passage, and the remaining in-, dividual air flow passages of said series being of increased individual lengths as the center of said body is approached, all of said individual air flow passages lying within that semi-circular portion of said body which is farthest disposed from the opening of said rectilinear air flow passage.

- HELEN C. GAMBLE. 

